Barbarian observes:
Could have poofed us all into existence instantly. But He chose to do it another way. Not surprisingly, engineers have come to understand that evolution is more efficient than design for complex things. God knew best, after all.
Mohamed, F.A.; Koivo, H.N.;
Control Eng. Lab., Helsinki Univ. of Technol., Espoo
This paper appears in: Future Power Systems, 2005 International Conference on
Issue Date: 18-18 Nov. 2005
On page(s): 4 pp. - 5
Location: Amsterdam
Print ISBN: 90-78205-02-4
References Cited: 16
INSPEC Accession Number: 9072383
Digital Object Identifier: 10.1109/FPS.2005.204326
Date of Current Version: 06 March 2006
Abstract
Speed control of power generation plants driven by diesel prime-movers is difficult because of the presence of a dead time and changes in parameters. This results in slow plant dynamics. In this paper, genetic algorithm self tuning PID controller based on indirect estimation of the dead time is proposed resulting in fast response at the startup and quick recovery, when a disturbance occurs. By using indirect estimation for the dead time and recursive least squares parameter estimation, an explicit estimate of the plant parameters and dead time is obtained. The algorithm is fast converging and stable. The estimated plant parameters and dead time are used in tuning the PID controller. The algorithm is robust with respect to variations in the engine dead time
And...
Evolutionary Algorithm as a Tool for Advanced
Designing of Diesel Engines
Teresa Donateo1, Domenico Laforgia1, Giovanni Aloisio2 and Silvia Mocavero2
1Research Center for Energy and Environment – University of Lecce
via per Monteroni - Lecce, Italy
{teresa.donateo, domenico.laforgia}@unile.it
2 CACT/ISUFI & NNL/INFM&CNR – University of Lecce,
via per Arnesano - Lecce, Italy
{giovanni.aloisio, silvia.mocavero}@unile
Abstract: An evolutionary algorithm has been developed for
the design of a diesel engine combustion chamber in order to
fulfill present day and future regulations about pollutant
emissions and greenhouse gases. The competitive goals to be
achieved in engine optimization are the reduction of emission
levels (soot, NOx and HC) and the improvement of specific fuel
consumption. They have been taken into account by using a
multi-objective approach implemented in an optimization tool
called HiPerGEO, which is characterized by a very small
population and a mechanism of reinizialization, combined with
an external memory to store non-dominated solutions.
The method was applied to the design of the combustion
chamber profile and numerical simulations were performed
with a modified version of the KIVA3V code to evaluate the
fitness values of the solutions. The chamber profile was defined
according to five geometrical parameters used as inputs to the
optimization method. The output of the simulations in terms of
emissions and IMEP were used to define four different
objective functions. The search for the optimum was performed
by applying the Pareto optimality criterion so that it is not
bounded to arbitrary weights assigned to each objective. At the
end of the simulation, the user can choose from the final Pareto
set the best compromise solution for different applications.
So apparently, evolution in diesel engines is supposed to prove something?
Barbarian observes:
It's not his statement. No such words in the Bible.
Why does how long it took him matter? Regardless of what number Hank said, you still would of disagreed. God said he created humans, rather he did it in 3 billion years, a microsecond, a nanosecond, or a attosecond.
No. It's not about reproduction at all. You know this.
No, it doesn't. It says He created them according to their kinds. The problem is, you don't approve of the way He did it.
Don't put words in my mouth, if you can't see I don't believe in Evolution then your blind. I NEVER said I had a problem with the way he did it, I'm fighting for the reason he did it!
Creating different kinds (which includes evolution), is quite a bit different that claiming He created them to reproduce according to kind.
Let's see what the Bible says
1 In the beginning God created the heavens and the earth. 2 Now the earth was formless and empty, darkness was over the surface of the deep, and the Spirit of God was hovering over the waters.
3 And God said, “Let there be light,†and there was light. 4 God saw that the light was good, and he separated the light from the darkness. 5 God called the light “day,†and the darkness he called “night.†And there was evening, and there was morning—the first day.
6 And God said, “Let there be a vault between the waters to separate water from water.†7 So God made the vault and separated the water under the vault from the water above it. And it was so. 8 God called the vault “sky.†And there was evening, and there was morning—the second day.
9 And God said, “Let the water under the sky be gathered to one place, and let dry ground appear.†And it was so. 10 God called the dry ground “land,†and the gathered waters he called “seas.†And God saw that it was good.
11 Then God said, “Let the land produce vegetation: seed-bearing plants and trees on the land that bear fruit with seed in it, according to their various kinds.†And it was so. 12 The land produced vegetation: plants bearing seed according to their kinds and trees bearing fruit with seed in it according to their kinds. And God saw that it was good. 13 And there was evening, and there was morning—the third day.
14 And God said, “Let there be lights in the vault of the sky to separate the day from the night, and let them serve as signs to mark sacred times, and days and years, 15 and let them be lights in the vault of the sky to give light on the earth.†And it was so. 16 God made two great lights—the greater light to govern the day and the lesser light to govern the night. He also made the stars. 17 God set them in the vault of the sky to give light on the earth, 18 to govern the day and the night, and to separate light from darkness. And God saw that it was good. 19 And there was evening, and there was morning—the fourth day.
20 And God said, “Let the water teem with living creatures, and let birds fly above the earth across the vault of the sky.†21 So God created the great creatures of the sea and every living thing with which the water teems and that moves about in it, according to their kinds, and every winged bird according to its kind. And God saw that it was good. 22 God blessed them and said, “Be fruitful and increase in number and fill the water in the seas, and let the birds increase on the earth.†23 And there was evening, and there was morning—the fifth day.
24
And God said, “Let the land produce living creatures according to their kinds: the livestock, the creatures that move along the ground, and the wild animals, each according to its kind.†And it was so. 25 God made the wild animals according to their kinds, the livestock according to their kinds, and all the creatures that move along the ground according to their kinds. And God saw that it was good.
26 Then God said, “Let us make mankind in our image, in our likeness, so that they may rule over the fish in the sea and the birds in the sky, over the livestock and all the wild animals,[a] and over all the creatures that move along the ground.â€
27 So God created mankind in his own image,
in the image of God he created them;
male and female he created them.
28 God blessed them and said to them, “Be fruitful and increase in number; fill the earth and subdue it. Rule over the fish in the sea and the birds in the sky and over every living creature that moves on the ground.â€
29 Then God said, “I give you every seed-bearing plant on the face of the whole earth and every tree that has fruit with seed in it. They will be yours for food. 30 And to all the beasts of the earth and all the birds in the sky and all the creatures that move along the ground—everything that has the breath of life in it—I give every green plant for food.†And it was so.
31 God saw all that he had made, and it was very good. And there was evening, and there was morning—the sixth day.